POSSIBLE SOLUTION: After reading through this thread I went back to FB, clicked on my profile picture (that I could not get to update on my phone) and chose to make it my profile picture AGAIN. (I then hid it from my timeline so my friends wouldn't think I was crazy lol). I then went to my phone and synced the FB data (through settings on your contact page) and it updated my picture, finally. I also had the two contacts that I could not get their updated pics on my phone to do this to their profile picture on FB, and their pictures are now showing the correct pictures on my phone. Be sure to sync your FB data after they do this...hope this works for others.